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Blogs

Blog Archive

 

Dawn Journal: Ceres' Intriguing Geology

Posted by Marc Rayman on 2015/06/30 12:51 CDT | 7 comments

Dawn is continuing to unveil a Ceres of mysteries at the first dwarf planet discovered. Mission Director Marc Rayman gives us an update.

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5 Steps to Preventing Asteroid Impact

Posted by Bruce Betts on 2015/06/30 12:33 CDT | 2 comments

For Asteroid Day, Bruce Betts reviews 5 steps needed to prevent asteroid impact, as well as how The Planetary Society is involved in those.

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Dawn Journal: Spiralling Closer to Ceres

Posted by Marc Rayman on 2015/05/29 07:32 CDT | 6 comments

Dawn's Chief Engineer and Mission Director Marc Rayman gives an update as the spacecraft's orbit takes it even closer to the dwarf planet Ceres.

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Tons of fun with the latest Ceres image releases from Dawn

Posted by Emily Lakdawalla on 2015/05/22 04:59 CDT | 20 comments

Fantastic new images of Ceres continue to spill out of the Dawn mission, and armchair scientists all over the world are zooming into them, exploring them, and trying to solve the puzzles that they contain.

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Two Months from Pluto!

Posted by Paul Schenk on 2015/05/19 06:12 CDT | 5 comments

Two months. Eight and half weeks. 58 days. It's a concept almost too difficult to grasp: we are on Pluto's doorstep.

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OSIRIS-REx – Seeking Answers to the Sweet Mystery of Life

Posted by Jason Dworkin on 2015/05/07 12:21 CDT | 2 comments

The nature of the origin of life is a topic that has engaged people since ancient times. The samples to be collected by OSIRIS-REx, returned to the Earth in 2023 and archived for decades beyond that, may indeed hide the secrets to the origin of life.

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A week's worth of "RC3" images from Dawn at Ceres

Posted by Emily Lakdawalla on 2015/05/05 12:25 CDT | 1 comments

Now that Dawn is in its science orbit at Ceres, the mission has been releasing new images every weekday!

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Dawn Journal: Getting Down to Science at Ceres

Posted by Marc Rayman on 2015/05/01 03:02 CDT | 14 comments

Dawn Mission Director and Chief Engineer Marc Rayman gives a status update on the mission, having finally arrived at dwarf planet Ceres.

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Development of the OSIRIS-REx Sampling System: TAGSAM and the SRC

Posted by Dante Lauretta on 2015/04/21 04:55 CDT

The OSIRIS-REx team has been busy assembling and testing the Touch-and-Go Sample Acquisition Mechanism (TAGSAM) and the Sample Return Capsule (SRC).

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New views of three worlds: Ceres, Pluto, and Charon

Posted by Emily Lakdawalla on 2015/04/16 03:17 CDT | 7 comments

New Horizons took its first color photo of Pluto and Charon, while Dawn obtained a 20-frame animation looking down on the north pole of a crescent Ceres.

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PROCYON update: Asteroid 2000 DP107 target selected, ion engine stopped

Posted by Emily Lakdawalla on 2015/04/13 12:15 CDT | 3 comments

PROCYON (PRoximate Object Close flYby with Optical Navigation) is a microsatellite that launched on December 3 as a secondary payload with Hayabusa 2. The mission has now selected their asteroid flyby target -- a binary asteroid named 2000 DP107 -- but is reporting a problem with their ion engines.

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Planetary Defense Conference: Steps to Prevent Asteroid Impact

Posted by Bruce Betts on 2015/04/13 07:23 CDT

From Italy, Bruce Betts gives background and information at the start of the Planetary Defense Conference, which addresses the asteroid threat. Bruce summarizes steps to prevent asteroid impact.

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OSIRIS-REx Begins ATLO (Assembly, Test, and Launch Operations)

Posted by Dante Lauretta on 2015/04/02 12:49 CDT

The OSIRIS-REx mission passed another major milestone. We now have approval to build the spacecraft.

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Dawn Journal: Preparing to Photograph Ceres

Posted by Marc Rayman on 2015/04/01 08:58 CDT | 11 comments

Dawn's Chief Engineer and Mission Director, Marc Rayman, explains why we haven't seen any new images of Ceres—and when we can expect them.

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Revitalized 0.81m telescope studying properties of NEOs

Posted by Bruce Betts on 2015/03/31 11:04 CDT

Thanks to a new focal reducer and re-aluminized mirror from a Shoemaker NEO grant, a 0.81-meter telescope in Italy is performing astrometric follow-up observations and physical studies of asteroids.

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Ceres Gets Real; Pluto Lurks

Posted by Paul Schenk on 2015/03/27 04:10 CDT

Although we are still along way from understanding this fascinating little body, Ceres is finally becoming a real planet with recognizable features! And that's kinda cool.

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Meet NASA's Winning Asteroid Redirect Spacecraft, and the Asteroid It May Visit

Posted by Jason Davis on 2015/03/25 05:52 CDT | 6 comments

NASA has decided to pluck a small boulder off a large asteroid, instead of bagging an entire asteroid outright, the agency announced Wednesday.

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LPSC 2015: First results from Dawn at Ceres: provisional place names and possible plumes

Posted by Emily Lakdawalla on 2015/03/19 06:29 CDT | 6 comments

Three talks on Tuesday at the Lunar and Planetary Science Conference concerned the first results from Dawn at Ceres. Chris Russell showed a map of "quads" with provisional names on Ceres, Andreas Nathues showed that Ceres' bright spot might be an area of plume-like activity, and Francesca Zambon showed color and temperature variations across the dwarf planet.

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How Do We Know When We Have Collected a Sample of Bennu?

Posted by Kevin Walsh on 2015/03/17 04:19 CDT | 1 comments

A huge amount of effort goes into deciding where to try to collect a sample on Bennu. There are roughly nine months to survey, map and model the asteroid to help make this decision.

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Adding Churyumov-Gerasimenko to my scale comparison of comets and asteroids

Posted by Emily Lakdawalla on 2015/03/13 05:47 CDT | 4 comments

Having found a color photo of the comet, I finally added Churyumov-Gerasimenko to my scale comparison of comets and asteroids visited by spacecraft.

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